EP2646536B1 - Wäscheweichspüler - Google Patents

Wäscheweichspüler Download PDF

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Publication number
EP2646536B1
EP2646536B1 EP11781507.6A EP11781507A EP2646536B1 EP 2646536 B1 EP2646536 B1 EP 2646536B1 EP 11781507 A EP11781507 A EP 11781507A EP 2646536 B1 EP2646536 B1 EP 2646536B1
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EP
European Patent Office
Prior art keywords
composition
fatty
chains
water
weight
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Revoked
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EP11781507.6A
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English (en)
French (fr)
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EP2646536A1 (de
Inventor
Elizabeth Ann Clowes
Michel Gilbert Jose Delroisse
Denis James Gregory
Robert Allan Hunter
Karl Gareth Kean Jones
James Merrington
Mark Nicholas Newman
Janette Perry
Shaun Charles Walsh
Jenny Wiggans
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Unilever PLC
Unilever NV
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Unilever PLC
Unilever NV
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Application filed by Unilever PLC, Unilever NV filed Critical Unilever PLC
Priority to EP11781507.6A priority Critical patent/EP2646536B1/de
Priority to PL11781507T priority patent/PL2646536T3/pl
Publication of EP2646536A1 publication Critical patent/EP2646536A1/de
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening compositions
    • C11D3/0015—Softening compositions liquid
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/835—Mixtures of non-ionic with cationic compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the present invention relates to dilute fabric conditioner compositions containing unsaturated TEA quaternary ammonium compounds which have a superior thickness and which do not suffer from flocculation during use.
  • liquid fabric softener formulations are critical for consumer acceptance.
  • a common method of enhancing product appeal and conveying a perception of product richness and efficacy is to increase the apparent thickness of the liquid product.
  • the majority of consumers demonstrate a preference for thicker products over thin products.
  • Another method of increasing viscosity is to add a polymer thickener.
  • a polymer thickener There are, however, negative attributes associated with many polymeric thickeners in that they are often non-biodegradable, their addition to the rinse product is technically difficult and such polymer thickened products tend to separate with time and cause redeposition problems.
  • a further problem that must be considered by the manufacturer of dilute fabric conditioners is the phenomenon of flocculation when fabric conditioner compositions are added to water during a rinse step of a laundry process. "Flocs" are white insoluble precipitates which are visually unacceptable and which reduce the performance of the product. There are several approaches to reducing or eliminating this problem.
  • milling during manufacture, is also known to reduce flocculation and viscosity.
  • non-ionic materials such as non-ionic surfactants is known to break up flocs but is also well known to reduce viscosity.
  • US2003/0220217 discloses fabric conditioner compositions comprising a cationic softening agent and a defined silicone material to reduce the drying time of laundered fabrics and/or to increase the rate of water removed from the fabrics during the spin cycle of an automatic washing machine.
  • Nonionic surfactants are preferred adjuncts for the purpose of stabilising the compositions.
  • Fully hardened softening agents are preferred and exemplified.
  • WO99/50378 discloses fabric softening compositions comprising from 1 to 8 wt % of one or more quaternary ammonium fabric conditioning compounds, a stabilising agent selected from a non-ionic surfactant or a single long chain alkyl cationic surfactant or mixtures thereof and a fatty alcohol.
  • the fatty alcohol increases the stability of the compositions.
  • US2008/0176784 discloses fabric conditioner compositions in the form of an aqueous dispersion comprising an ester linked quaternary ammonium fabric softening material and an alkoxylated non-ionic material to improve high temperature storage stability.
  • US2003/0139314 A1 discloses aqueous fabric conditioning compositions, which are clear and translucent, comprising one or more quaternary ammonium fabric softening materials, one or more oils and a refractive index increasing agent; the composition being in the form of an emulsion comprising an aqueous phase and an oil phase, such that the aqueous phase has a refractive index +/- 2% of the refractive index of the oil phase.
  • An example discloses an aqueous phase, which is made up of 50 % sucrose and 50 % water.
  • WO 03/012019 A1 and US2003/0092591 disclose emulsion based aqueous, liquid fabric conditioning compositions comprising a quaternary ammonium cationic softening compound and a nonionic surfactant which comprise emulsions having a certain droplet size.
  • Non-ester linked, hardened tallow materials are exemplified.
  • WO 2006/133791 A2 discloses the use of a non-ionic ethoxylated surfactant having an EO value of at least 20, in a fabric conditioning composition used in the rinse liquor of a domestic wash process, to improve the appearance of the rinse liquor.
  • a specific quaternary active with a flocculation prevention agent, which is a non-ionic surfactant, enables the formation of a thick "dilute" fabric conditioner composition, which does not flocculate upon use.
  • the quaternary softening active has a specific distribution of fatty acids having chains of a defined carbon chain length.
  • the flocculation prevention agent is essential to prevent the formation of flocs when the composition is added to water. Surprisingly, the viscosity of the composition is not compromised. This combination of exceptional viscosity and visual attributes in a dilute fabric conditioner has not been achieved before.
  • a thick, dilute aqueous fabric conditioner composition comprising
  • a method of preparing a rinse water which comprises adding to water a composition as defined in the first aspect.
  • a composition as defined by the first aspect of the invention to provide a reduced floc rinse water for the rinsing of fabric.
  • the aqueous fabric conditioner composition of the invention has a viscosity of greater than 50 cps, preferably from 55 to 200 cps, more preferably from 60 to 175, even more preferably from 80 to 150 and most preferably from 100 to 140 cps as measured on a "cup and bob" viscometer; the viscosity being continuously measured under shear at 106s -1 for 60 seconds, at 25°C.
  • Any suitable viscometer can be used, for example, the Haake VT550 with a MV1 cup and bob geometry and the Thermo Fisher RS600 viscometer.
  • compositions of the invention do not cause significant flocculation when added to water, such as during a rinse step of a laundry process. Little or no floc formation occurs upon addition of the composition to water. The level of floc formation is reduced compared to the level of floc formation caused by the addition to water of an equivalent composition that does not comprise a floc reducing agent in accordance with the invention.
  • the fabric softening active for use in the fabric conditioner compositions of the present invention is an ester-linked quaternary ammonium compound (QAC).
  • QAC ester-linked quaternary ammonium compound
  • the fatty acid chains of the QAC comprise from 20 to 35 wt % of saturated C18 chains and from 20 to 35 wt % of monounsaturated C18 chains by weight of total fatty acid chains.
  • the QAC is derived from palm or tallow feedstocks. These feedstocks may be pure or predominantly palm or tallow based. Blends of different feedstocks may be used.
  • the fatty acid chains of the QAC comprise from 25 to 30 wt %, preferably from 26 to 28 wt % of saturated C18 chains and from 25 to 30 wt %, preferably from 26 to 28 wt % of monounsaturated C18 chains, by weight of total fatty acid chains.
  • the fatty acid chains of the QAC comprise from 30 to 35 wt %, preferably from 33 to 35 wt % of saturated C18 chains and from 24 to 35 wt %, preferably from 27 to 32 wt % of monounsaturated C18 chains, by weight of total fatty acid chains.
  • the fabric softening active for use in the fabric conditioner compositions of the present invention is preferably an ester-linked triethanolamine (TEA) based quaternary ammonium compound.
  • TAA ester-linked triethanolamine
  • Ester-linked triethanolamine quaternary ammonium compounds comprise a mixture of mono-, di- and tri-ester linked components.
  • the triester content is preferably below 10 wt %, more preferably from 5 to 9 wt % by total weight of the quaternary active component.
  • Preferred ester-linked triethanolamine quaternary ammonium compounds have a diester content of from 50 to 60 wt %, more preferably from 52 to 59 wt % by total weight of the quaternary active component.
  • TEA quats having a monoester content of from 30 to 45 wt %, more preferably from 32 to 42 wt % by total weight of the quaternary active component.
  • a preferred TEA quat of the present invention comprises from 32 to 42 wt % of monoester, from 52 to 59 wt % of diester and from 5 to 9 wt % of triester compounds, by total weight of the quaternary active; more preferably from 35 to 39 wt % of monoester, from 54 to 58 wt % of diester and from 7 to 8 wt % of triester compounds, by total weight of the quaternary active component.
  • the quaternary ammonium materials for use in the compositions are known as "soft" materials.
  • Iodine value as used in the context of the present invention refers to the measurement of the degree of unsaturation present in a material by a method of nmr spectroscopy as described in Anal. Chem, 34, 1136 (1962) Johnson and Shoolery .
  • the preferred quaternary ammonium materials for use in the present invention can be derived from feedstock having an overall iodine value of from 30 to 45, preferably from 30 to 42 and most preferably 36.
  • Quaternary ammonium compounds (QACs) suitable for use in the present invention can be represented by formula (I) wherein,
  • Preferred quaternary ammonium actives according to Formula 1 are available, for example, TEP-88L available from FXG (Feixiang Chemicals (Zhangjiagang) Co., Ltd., China; Stepantex SP88-2 and Stepantex VT-90 ex Stepan; Tetranyl L1/90N ex Kao, Rewoquat V10058 ex Evonik and Prapegen TQN ex Clariant.
  • a second group of QACs suitable for use in the invention is represented by Formula (II): (R 1 ) 2 -N + -[(CH 2 ) n -T-R 2 ] 2 X - (II) wherein each R 1 group is independently selected from C 1-4 alkyl, or C 2-4 alkenyl groups; and wherein each R 2 group is independently selected from C 8-28 alkyl or alkenyl groups; and n, T, and X - are as defined above.
  • Preferred materials of this second group include bis(2-tallowoyloxyethyl)dimethyl ammonium chloride.
  • the fabric conditioning compositions of the invention are "dilute" and comprise from 2 to 9 wt %, preferably from 3 to 8 wt %, most preferably from 3 to 5 wt %, of a fabric softening active, by weight of the total composition.
  • compositions of the invention comprise a floc prevention agent, which is a non-ionic alkoxylated material having an HLB value of from 8 to 18, preferably from 11 to 16, more preferably from 12 to 16 and most preferably 16.
  • the non-ionic alkoxylated material can be linear or branched, preferably linear.
  • the floc prevention agent is present in an amount of from 0.01 to 0.5 wt %, preferably from 0.02 to 0.4 wt %, more preferably from 0.05 to 0.25 wt % and most preferably 0.1 wt % by total weight of the composition.
  • Suitable floc prevention agents include nonionic surfactants.
  • Suitable non-ionic surfactants include addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty amines.
  • the floc prevention agent is preferably selected from addition products of (a) an alkoxide selected from ethylene oxide, propylene oxide and mixtures thereof with (b) a fatty material selected from fatty alcohols, fatty acids and fatty amines.
  • Y is typically: -O-, -C(O)O-, -C(O)N(R)- or -C(O)N(R)R- in which R has the meaning given above or can be hydrogen; and Z is at least about 6, preferably at least about 10 or 11.
  • LutensolTM AT25 (BASF) based on coco chain and 25 EO groups is an example of a suitable nonoionic surfactant.
  • suitable surfactants include Renex 36 (Trideceth-6), ex Uniqema; Tergitol 15-S3, ex Dow Chemical Co.; Dihydrol LT7, ex Thai Ethoxylate ltd; Cremophor CO40, ex BASF and Neodol 91-8, ex Shell.
  • Thickening polymers may be added to the compositions of the invention for further thickening. Any suitable thickener polymer may be used.
  • Suitable polymers are water soluble or dispersable.
  • the polymer is cationic.
  • Polymers particularly useful in the compositions of the invention include those described in WO2010/078959 (SNF S.A.S.). These are crosslinked water swellable cationic copolymers having at least one cationic monomer and optionally other non-ionic and/or anionic monomers. Preferred polymers of this type are copolymers of acrylamide and trimethylaminoethylacrylate chloride.
  • Preferred polymers comprise less than 25 % of water soluble polymers by weight of the total polymer, preferably less than 20 %, and most preferably less than 15 %, and a cross-linking agent concentration of from 500 ppm to 5000 ppm relative to the polymer, preferably from 750 ppm to 5000 ppm, more preferably from 1000 to 4500 ppm (as determined by a suitable metering method such as that described on page 8 of patent EP 343840 ).
  • the cross-linking agent concentration must be higher than about 500 ppm relative to the polymer, and preferably higher than about 750 ppm when the crosslinking agent used is the methylene bisacrylamide, or other cross-linking agents at concentrations that lead to equivalent cross-linking levels of from 10 to 10,000 ppm.
  • Suitable cationic monomers are selected from the group consisting of the following monomers and derivatives and their quaternary or acid salts: dimethylaminopropylmethacrylamide, dimethylaminopropylacrylamide, diallylamine, methyldiallylamine, dialkylaminoalkyl-acrylates and methacrylates, dialkylaminoalkyl-acrylamides or -methacrylamides.
  • monomers performing an anionic function acrylic acid, methacrylic acid, itaconic acid, crotonic acid, maleic acid, fumaric acid, as well as monomers performing a sulfonic acid or phosphonic acid functions, such as 2-acrylamido-2-methyl propane sulfonic acid (ATBS) etc.
  • ATBS 2-acrylamido-2-methyl propane sulfonic acid
  • the monomers may also contain hydrophobic groups.
  • cross-linking agents methylene bisacrylamide (MBA), ethylene glycol diacrylate, polyethylene glycol dimethacrylate, diacrylamide, triallylamine, cyanomethylacrylate, vinyl oxyethylacrylate or methacrylate and formaldehyde, glyoxal, compounds of the glycidyl ether type such as ethyleneglycol diglycidyl ether, or the epoxydes or any other means familiar to the expert permitting cross-linking.
  • MBA methylene bisacrylamide
  • ethylene glycol diacrylate polyethylene glycol dimethacrylate
  • diacrylamide diacrylamide
  • triallylamine cyanomethylacrylate
  • vinyl oxyethylacrylate or methacrylate and formaldehyde glyoxal
  • compounds of the glycidyl ether type such as ethyleneglycol diglycidyl ether
  • epoxydes or any other means familiar to the expert permitting cross-linking.
  • the cross-linking rate preferably ranges from 800 to 5000 ppm (on the basis of methylene bisacrylamide) relative to the polymer or equivalent cross-linking with a cross-linking agent of different efficiency.
  • the degree of non-linearity can additionally be controlled by the inclusion of chain transfer agents (such as isopropyl alcohol, sodium hypophosphite, mercaptoethanol) in the polymerisation mixture in order to control the polymeric chain's length and the cross-linking density.
  • chain transfer agents such as isopropyl alcohol, sodium hypophosphite, mercaptoethanol
  • the amount of polymer used in the compositions of the invention is suitably from 0.001 to 0.5 wt %, preferably from 0.005 to 0.4 wt %, more preferably from 0.05 to 0.35 wt % and most preferably from 0.1 to 0.25 wt %, by weight of the total composition.
  • An example of a preferred polymer is Flosoft 270LS ex SNF.
  • compositions of the invention may contain a non-cationic softening material, which is preferably an oily sugar derivative.
  • An oily sugar derivative is a liquid or soft solid derivative of a cyclic polyol (CPE) or of a reduced saccharide (RSE), said derivative resulting from 35 to 100% of the hydroxyl groups in said polyol or in said saccharide being esterified or etherified.
  • the derivative has two or more ester or ether groups independently attached to a C 8 -C 22 alkyl or alkenyl chain.
  • the CPE or RSE does not have any substantial crystalline character at 20°C. Instead it is preferably in a liquid or soft solid state as herein defined at 20°C.
  • liquid or soft solid (as hereinafter defined) CPEs or RSEs suitable for use in the present invention result from 35 to 100% of the hydroxyl groups of the starting cyclic polyol or reduced saccharide being esterified or etherified with groups such that the CPEs or RSEs are in the required liquid or soft solid state.
  • These groups typically contain unsaturation, branching or mixed chain lengths.
  • the CPEs or RSEs have 3 or more ester or ether groups or mixtures thereof, for example 3 to 8, especially 3 to 5. It is preferred if two or more of the ester or ether groups of the CPE or RSE are independently of one another attached to a C 8 to C 22 alkyl or alkenyl chain.
  • the C 8 to C 22 alkyl or alkenyl groups may be branched or linear carbon chains.
  • 35 to 85% of the hydroxyl groups most preferably 40-80%, even more preferably 45-75%, such as 45-70% are esterified or etherified.
  • the CPE or RSE contains at least 35% tri or higher esters, e.g. at least 40%.
  • the CPE or RSE has at least one of the chains independently attached to the ester or ether groups having at least one unsaturated bond. This provides a cost effective way of making the CPE or RSE a liquid or a soft solid. It is preferred if predominantly unsaturated fatty chains, derived from, for example, rape oil, cotton seed oil, soybean oil, oleic, tallow, palmitoleic, linoleic, erucic or other sources of unsaturated vegetable fatty acids, are attached to the ester/ether groups.
  • ester or ether chains of the CPE or RSE.
  • the ester or ether chains of the CPE or RSE are preferably predominantly unsaturated.
  • Preferred CPEs or RSEs include sucrose tetratallowate, sucrose tetrarapeate, sucrose tetraoleate, sucrose tetraesters of soybean oil or cotton seed oil, cellobiose tetraoleate, sucrose trioleate, sucrose triapeate, sucrose pentaoleate, sucrose pentarapeate, sucrose hexaoleate, sucrose hexarapeate, sucrose triesters, pentaesters and hexaesters of soybean oil or cotton seed oil, glucose tiroleate, glucose tetraoleate, xylose trioleate, or sucrose tetra-,tri-, penta- or hexa- esters with any mixture of predominantly unsaturated fatty acid chains.
  • CPEs or RSEs are those with monosaturated fatty acid chains, i.e. where any polyunsaturation has been removed by partial hydrogenation.
  • CPEs or RSEs based on polyunsaturated fatty acid chains e.g. sucrose tetralinoleate, may be used provided most of the polyunsaturation has been removed by partial hydrogenation.
  • liquid CPEs or RSEs are any of the above but where the polyunsaturation has been removed through partial hydrogenation.
  • the fatty acid chains Preferably 40% or more of the fatty acid chains contain an unsaturated bond, more preferably 50% or more, most preferably 60% or more. In most cases 65% to 100%, e.g. 65% to 95% contain an unsaturated bond.
  • CPEs are preferred for use with the present invention.
  • Inositol is a preferred example of a cyclic polyol. Inositol derivatives are especially preferred.
  • cyclic polyol encompasses all forms of saccharides. Indeed saccharides are especially preferred for use with this invention. Examples of preferred saccharides for the CPEs or RSEs to be derived from are monosaccharides and disaccharides.
  • Examples of monosaccharides include xylose, arabinose, galactose, fructose, sorbose and glucose. Glucose is especially preferred.
  • Examples of disaccharides include maltose, lactose, cellobiose and sucrose. Sucrose is especially preferred.
  • An example of a reduced saccharide is sorbitan.
  • the liquid or soft solid CPEs can be prepared by methods well known to those skilled in the art. These include acylation of the cyclic polyol or reduced saccharide with an acid chloride; trans-esterification of the cyclic polyol or reduced saccharide fatty acid esters using a variety of catalysts; acylation of the cyclic polyol or reduced saccharide with an acid anhydride and acylation of the cyclic polyol or reduced saccharide with a fatty acid. See for instance US 4 386 213 and AU 14416/88 (both P&G ).
  • the CPE or RSE has 3 or more, preferably 4 or more ester or ether groups. If the CPE is a disaccharide it is preferred if the disaccharide has 3 or more ester or ether groups. Particularly preferred CPEs are esters with a degree of esterification of 3 to 5, for example, sucrose tri, tetra and penta esters.
  • each ring of the CPE has one ether or ester group, preferably at the C 1 position.
  • Suitable examples of such compounds include methyl glucose derivatives.
  • CPEs examples include esters of alkyl(poly)glucosides, in particular alkyl glucoside esters having a degree of polymerisation from 1 to 2.
  • the length of the unsaturated (and saturated if present) chains in the CPE or RSE is C 8 -C 22 , preferably C 12 -C 22 . It is possible to include one or more chains of C 1 -C 8 , however these are less preferred.
  • the liquid or soft solid CPEs or RSEs which are suitable for use in the present invention are characterised as materials having a solid:liquid ratio of between 50:50 and 0:100 at 20°C as determined by T 2 relaxation time NMR, preferably between 43:57 and 0:100, most preferably between 40:60 and 0:100, such as, 20:80 and 0:100.
  • the T 2 NMR relaxation time is commonly used for characterising solid: liquid ratios in soft solid products such as fats and margarines.
  • any component of the signal with a T 2 of less than 100 ⁇ s is considered to be a solid component and any component with T 2 ⁇ 100 ⁇ s is considered to be a liquid component.
  • the prefixes e.g. tetra and penta
  • the compounds exist as a mixture of materials ranging from the monoester to the fully esterified ester. It is the average degree of esterification which is used herein to define the CPEs and RSEs.
  • the HLB of the CPE or RSE is typically between 1 and 3.
  • the CPE or RSE is preferably present in the composition in an amount of 0.5-50% by weight, based upon the total weight of the composition, more preferably 1-30% by weight, such as 2-25%, e.g. 2-20%.
  • the CPEs and RSEs for use in the compositions of the invention include sucrose tetraoleate, sucrose pentaerucate, sucrose tetraerucate and sucrose pentaoleate.
  • Optional shading dyes can be used. Preferred dyes are violet or blue. Suitable and preferred classes of dyes are discussed below. Moreover the unsaturated quaternary ammonium compounds are subject to some degree of UV light and/or transition metal ion catalysed radical auto-oxidation, with an attendant risk of yellowing of fabric. The present of a shading dye also reduces the risk of yellowing from this source.
  • the level of shading dye present in the compositions of the present invention depend, therefore, on the type of shading dye.
  • Preferred overall ranges, suitable for the present invention are from 0.00001 to 0.1 wt %, more preferably 0.0001 to 0.01 wt %, most preferably 0.0005 to 0.005 wt % by weight of the total composition.
  • Direct dyes are the class of water soluble dyes which have an affinity for fibres and are taken up directly. Direct violet and direct blue dyes are preferred.
  • the dye are bis -azo or tris -azo dyes are used.
  • the direct dye is a direct violet of the following structures: or wherein:
  • Preferred dyes are direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 31, direct violet 35, direct violet 40, direct violet 41, direct violet 51, and direct violet 99.
  • Bis-azo copper containing dyes such as direct violet 66 may be used.
  • the benzidene based dyes are less preferred.
  • the direct dye is present at 0.00001 wt% to 0.0010 wt% of the formulation.
  • the direct dye may be covalently linked to the photo-bleach, for example as described in WO2006/024612 .
  • Cotton substantive acid dyes give benefits to cotton containing garments.
  • Preferred dyes and mixes of dyes are blue or violet.
  • Preferred acid dyes are: (i) azine dyes, wherein the dye is of the following core structure:
  • Preferred azine dyes are: acid blue 98, acid violet 50, and acid blue 59, more preferably acid violet 50 and acid blue 98.
  • non-azine acid dyes are acid violet 17, acid black 1 and acid blue 29.
  • the acid dye is present at 0.0005 wt% to 0.01 wt% of the formulation.
  • the composition may comprise one or more hydrophobic dyes selected from benzodifuranes, methine, triphenylmethanes, napthalimides, pyrazole, napthoquinone, anthraquinone and mono-azo or di-azo dye chromophores.
  • Hydrophobic dyes are dyes which do not contain any charged water solubilising group. Hydrophobic dyes may be selected from the groups of disperse and solvent dyes. Blue and violet anthraquinone and mono-azo dye are preferred.
  • Preferred dyes include solvent violet 13, disperse violet 27 disperse violet 26, disperse violet 28, disperse violet 63 and disperse violet 77.
  • the hydrophobic dye is present at 0.0001 wt% to 0.005 wt% of the formulation.
  • Basic dyes are organic dyes which carry a net positive charge. They deposit onto cotton. They are of particular utility for used in composition that contain predominantly cationic surfactants. Dyes may be selected from the basic violet and basic blue dyes listed in the Colour Index International.
  • Preferred examples include triarylmethane basic dyes, methane basic dye, anthraquinone basic dyes, basic blue 16, basic blue 65, basic blue 66, basic blue 67, basic blue 71, basic blue 159, basic violet 19, basic violet 35, basic violet 38, basic violet 48; basic blue 3, basic blue 75, basic blue 95, basic blue 122, basic blue 124, basic blue 141.
  • Reactive dyes are dyes which contain an organic group capable of reacting with cellulose and linking the dye to cellulose with a covalent bond. They deposit onto cotton.
  • the reactive group is hydrolysed or reactive group of the dyes has been reacted with an organic species such as a polymer, so as to the link the dye to this species.
  • Dyes may be selected from the reactive violet and reactive blue dyes listed in the Colour Index International.
  • Preferred examples include reactive blue 19, reactive blue 163, reactive blue 182 and reactive blue, reactive blue 96.
  • Dye conjugates are formed by binding direct, acid or basic dyes to polymers or particles via physical forces.
  • Particularly preferred dyes are: direct violet 7, direct violet 9, direct violet 11, direct violet 26, direct violet 31, direct violet 35, direct violet 40, direct violet 41, direct violet 51, direct violet 99, acid blue 98, acid violet 50, acid blue 59, acid violet 17, acid black 1, acid blue 29, solvent violet 13, disperse violet 27 disperse violet 26, disperse violet 28, disperse violet 63, disperse violet 77 and mixtures thereof.
  • compositions of the present invention may comprise one or more perfumes if desired.
  • the perfume is preferably present in an amount from 0.01 to 10 % by weight, more preferably from 0.05 to 5 % by weight, even more preferably from 0.05 to 2 %, most preferably from 0.05 to 1.5 % by weight, based on the total weight of the composition.
  • Useful components of the perfume include materials of both natural and synthetic origin. They include single compounds and mixtures. Specific examples of such components may be found in the current literature, e.g., in Fenaroli's Handbook of Flavor Ingredients, 1975, CRC Press ; Synthetic Food Adjuncts, 1947 by M. B. Jacobs, edited by Van Nostr and; or Perfume and Flavor Chemicals by S. Arctander 1969, Montclair, N.J. (USA ).
  • perfume in this context is not only meant a fully formulated product fragrance, but also selected components of that fragrance, particularly those which are prone to loss, such as the so-called 'top notes'.
  • Top notes are defined by Poucher (Journal of the Society of Cosmetic Chemists 6(2):80 [1955 ]). Examples of well known top-notes include citrus oils, linalool, linalyl acetate, lavender, dihydromyrcenol, rose oxide and cis-3-hexanol. Top notes typically comprise 15-25%wt of a perfume composition and in those embodiments of the invention which contain an increased level of top-notes it is envisaged at that least 20%wt would be present within the encapsulate.
  • perfume or pro-fragrance may be encapsulated, typical perfume components which it is advantageous to encapsulate, include those with a relatively low boiling point, preferably those with a boiling point of less than 300, preferably 100-250 Celsius and pro-fragrances which can produce such components.
  • perfume components which have a low Clog P (i.e. those which will be partitioned into water), preferably with a Clog P of less than 3.0.
  • Clog P i.e. those which will be partitioned into water
  • materials, of relatively low boiling point and relatively low Clog P have been called the "delayed blooming" perfume ingredients and include the following materials:
  • Preferred non-encapsulated perfume ingredients are those hydrophobic perfume components with a ClogP above 3.
  • ClogP means the calculated logarithm to base 10 of the octanol/water partition coefficient (P).
  • the octanol/water partition coefficient of a PRM is the ratio between its equilibrium concentrations in octanol and water. Given that this measure is a ratio of the equilibrium concentration of a PRM in a non-polar solvent (octanol) with its concentration in a polar solvent (water), ClogP is also a measure of the hydrophobicity of a material--the higher the ClogP value, the more hydrophobic the material.
  • ClogP values can be readily calculated from a program called "CLOGP" which is available from Daylight Chemical Information Systems Inc., Irvine Calif., USA. Octanol/water partition coefficients are described in more detail in U.S. Pat. No. 5,578,563 .
  • Perfume components with a ClogP above 3 comprise: Iso E super, citronellol, Ethyl cinnamate, Bangalol, 2,4,6-Trimethylbenzaldehyde, Hexyl cinnamic aldehyde, 2,6-Dimethyl-2-heptanol, Diisobutylcarbinol, Ethyl salicylate, Phenethyl isobutyrate, Ethyl hexyl ketone, Propyl amyl ketone, Dibutyl ketone, Heptyl methyl ketone, 4,5-Dihydrotoluene, Caprylic aldehyde, Citral, Geranial, Isopropyl benzoate, Cyclohexanepropionic acid, Campholene aldehyde, Caprylic acid, Caprylic alcohol, Cuminaldehyde, 1-Ethyl-4-nitrobenzene, Heptyl formate, 4-I
  • compositions of the present invention it is envisaged that there will be four or more, preferably five or more, more preferably six or more or even seven or more different perfume components from the list given of delayed blooming perfumes given above and/or the list of perfume components with a ClogP above 3 present in the perfume.
  • perfumes with which the present invention can be applied are the so-called 'aromatherapy' materials. These include many components also used in perfumery, including components of essential oils such as Clary Sage, Eucalyptus, Geranium, Lavender, Mace Extract, Neroli, Nutmeg, Spearmint, Sweet Violet Leaf and Valerian.
  • Co-softeners may be used. Suitable co-softeners include fatty acids. When employed, they are typically present at from 0.1 to 20% and particularly at from 0.5 to 10%, based on the total weight of the composition. Preferred co-softeners include fatty esters, and fatty N-oxides. Fatty esters that may be employed include fatty monoesters, such as glycerol monostearate, fatty sugar esters, such as those disclosed WO 01/46361 (Unilever ).
  • Preferred fatty acids include hardened tallow fatty acid (available under the tradename PristereneTM, ex Uniqema).
  • Preferred fatty alcohols include hardened tallow alcohol (available under the tradenames StenolTM and HydrenolTM, ex Cognis and LaurexTM CS, ex Albright and Wilson).
  • compositions for use in the present invention may comprise a fatty complexing agent.
  • Especially suitable fatty complexing agents include fatty alcohols.
  • Fatty complexing material may be used to improve the viscosity profile of the composition.
  • the fatty complexing agent is preferably present in an amount greater than 0.3 to 5% by weight based on the total weight of the composition. More preferably, the fatty component is present in an amount of from 0.4 to 4%.
  • the weight ratio of the mono-ester component of the quaternary ammonium fabric softening material to the fatty complexing agent is preferably from 5:1 to 1:5, more preferably 4:1 to 1:4, most preferably 3:1 to 1:3, e.g. 2:1 to 1:2.
  • compositions of the invention may contain one or more other ingredients.
  • ingredients include further preservatives (e.g. bactericides), pH buffering agents, perfume carriers, hydrotropes, anti-redeposition agents, soil-release agents, polyelectrolytes, anti-shrinking agents, anti-wrinkle agents, anti-oxidants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents, ironing aids pearlisers and/or opacifiers, natural oils/extracts, processing aids, e.g. electrolytes, hygiene agents, e.g. anti-bacterials and antifungals and skin benefit agents.
  • compositions of the present invention are aqueous fabric conditioning compositions suitable for use in a laundry process.
  • the compositions comprise at least 75 wt % water, more preferably from 80 to 97 wt % water and most preferably from 90 to 96 wt % water, by weight of the total composition.
  • compositions of the invention may also contain pH modifiers such as hydrochloric acid or lactic acid.
  • pH modifiers such as hydrochloric acid or lactic acid.
  • the liquid compositions preferably have a pH of about 2.5 to 3.0.
  • the composition is preferably for use in the rinse cycle of a home textile laundering operation, where, it may be added directly in an undiluted state to a washing machine, e.g. through a dispenser drawer or, for a top-loading washing machine, directly into the drum.
  • the compositions may also be used in a domestic hand-washing laundry operation.
  • compositions of the present invention can be used in industrial laundry operations, e.g. as a finishing agent for softening new clothes prior to sale to consumers.
  • compositions of the invention may be made by combining a melt comprising the fabric softening active with an aqueous phase.
  • a preferred method of preparation for a dilute is as follows:-
  • the nonionic floc prevention agent can be added with the perfume. Alternatively, it may be added at the end of the process after cooling.
  • Examples of the invention are represented by a number. Comparative examples are represented by a letter.
  • TEAQ1 and TEAQ2 have similar ester distributions, but crucially, they have different distributions of fatty acid chain lengths.
  • TEAQ2 is in accordance with the definition of the fabric softening active for use in the invention, and TEAQ1 is not.
  • Example 1 Preparation of Fabric Conditioners 1-6 in accordance with the invention and Comparative Examples A to C.
  • compositions 1-6, A to C were dilute liquid fabric conditioners, comprising about 3 % of active.
  • the compositions are shown in Table 3.
  • Table 3 Compositions of the liquid fabric softeners 1-6, A to C.
  • Ingredient (wt %) A B C 1 2 3 4 5 6 TEAQ1 2.96 - - - - - - - - TEAQ2 2 - 2.96 - 2.96 2.96 2.96 2.96 2.96 2.96 TEAQ3 3 - - 2.2 - - - - - - Fatty alcohol 4 0.49 0.49 - 0.49 0.49 0.49 0.49 0.49 0.49 0.49 Fatty acid 11 - - 0.38 - - - - - - Perfume carrier 12 - - 3.3 - - - - - - - Perfume 9 0.16 0.16 0.3 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 Polymer 5 0.25 0.25 - 0.25 0.
  • compositions shown in Table 3 were prepared using the following method:
  • Example 2 - Viscosities and flocculation behaviour of Compositions 1-6 and Comparative Examples A to C
  • Viscosities of the freshly made dilute compositions were measured using a Haake VT550 with a MV1 "cup and bob” geometry and the viscosity continuously measured under shear at 106s -1 for 60 seconds at 25°C.
  • the flocculation of fabric conditioner can be evaluated by dispersing a small quantity of fabric conditioner in water of known hardness and visually evaluating the quality of the dispersion formed.
  • the amount of flocculation is known to be affected by water hardness.
  • flocculation behaviour was measured at a range of water hardness environments. This was achieved by varying the hardness (French Hardness; FH) and the chloride:sulphate ratio of the water.
  • FH Frnch Hardness
  • the water can be prepared with the desired properties by adding calcium chloride dihydrate and magnesium sulphate heptahydrate to deionised water. Water having a high FH and a low ratio of Cl - :SO 4 2- is most likely to induce flocculation.
  • Table 4 Hardness (°FH) and ratio of Cl - :SO 4 2- of test waters W1, W2 and W3 Test Water Hardness (°FH) a Ratio of CI:SO 4 W1 6 3:1 W2 12 2:1 W3 24 1:1 a From CaCl 2 and MgSO 4
  • W3 provides the most likely environment to induce flocculation, and W1 the least likely.
  • W1 the least likely.
  • a product that shows no flocs under high floc-inducing conditions is unlikely to flocculate under more favourable conditions.
  • the amount of flocculation was assessed on the following 9 point scale:- 0 No flocs visible, product uniformly dispersed. 0.5 1 Small flocs visible, floccs uniformly distributed. 1.5 2 Small flocs, some clumping 2.5 3 Medium flocs some clumping. 3.5 4 Large flocs, large and very obvious clumps.
  • compositions 1-6 give dramatically reduced flocculation compared with the comparative examples.
  • compositions in accordance with the invention give the combination of superior viscosity and low flocculation.
  • Example 3 - Comparative Examples D, E and F.
  • Viscosities and flocculation properties were evaluated in the same way as described under Example 2 above. The results are given in Table 7 below:- Table 7: Flocculation scores and viscosities for the dilute fabric softeners D, E and F. Composition Test water Total floc score Viscosity at 106s -1 , 25°C W1 W2 W3 D 0 1 2 3 3.5 E 1 2 3 6 19 F 1.5 1.5 1.5 4.5 26

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Claims (14)

  1. Wässrige Weichspülerzusammensetzung,
    die Folgendes aufweist:
    (a) 2 bis 9 Gew.-% eines Weichmacherwirkstoffs für Textilerzeugnisse, und zwar auf das Gewicht der gesamten Zusammensetzung bezogen, wobei der Weichmacherwirkstoff für Textilerzeugnisse eine Ester-gebundene quaternäre Ammoniumverbindung mit Fettsäureketten ist, die 20 bis 35 Gew.-% gesättigte C18-Ketten und 20 bis 35 Gew.-% einfach ungesättigte C18-Ketten aufweisen, und zwar auf das Gewicht der gesamten Fettsäureketten bezogen;
    (b) 0,01 bis 0,5 Gew.-%, und zwar auf das Gewicht der gesamten Zusammensetzung bezogen, eines Antiflockungsmittels, das ein nichtionisches alkoxyliertes Material mit einem HLB-Wert von 8 bis 18 ist;
    (c) mindestens 75 Gew.-% Wasser; und
    (d) ein Fettmaterial, das aus einem Fettalkohol und einer Fettsäure ausgewählt ist;
    wobei die wässrige Weichspülerzusammensetzung eine Viskosität von mehr als 50 cps, vorzugsweise von 55 bis 200 cps aufweist, und zwar mit einem Viskosimeter mit Messbecher und Messkörper gemessen; wobei die Viskosität für 60 s bei 25 °C kontinuierlich bei einer Scherung von 106 s-1 gemessen wird und wobei die Zusammensetzung bei der Zugabe zu Wasser zu einer geringen Flockenbildung oder zu keiner Flockenbildung führt.
  2. Zusammensetzung nach Anspruch 1,
    wobei die Fettsäureketten der quaternären Ammoniumverbindung 25 bis 30 Gew.-% gesättigte C18-Ketten und 25 bis 30 Gew.-% einfach ungesättigte C18-Ketten aufweisen, und zwar auf das Gewicht der gesamten Fettsäureketten bezogen.
  3. Zusammensetzung nach Anspruch 1 oder 2,
    wobei der Weichmacherwirkstoff für Textilerzeugnisse eine wirksame Estergebundene, auf Triethanolamin basierende quaternäre Ammoniumverbindung ist.
  4. Zusammensetzung nach Anspruch 3,
    wobei der Weichmacherwirkstoff für Textilerzeugnisse eine wirksame Estergebundene, auf Triethanolamin basierende quaternäre Ammoniumverbindung mit einer Esterverteilung ist, die 32 bis 42 % Monoester-, 52 bis 59 % Diester- und 5 bis 9 % Triesterverbindungen aufweist, und zwar auf das Gewicht des gesamten quaternären Wirkstoffs bezogen.
  5. Zusammensetzung nach einem der vorstehenden Ansprüche,
    wobei das Fettmaterial ein Fettalkohol ist.
  6. Zusammensetzung nach einem der vorstehenden Ansprüche,
    wobei das Antiflockungsmittel in einer Menge von 0,05 bis 0,25 Gew.-% vorliegt.
  7. Zusammensetzung nach einem der vorstehenden Ansprüche,
    wobei das Antiflockungsmittel aus Additionsprodukten von (a) einem Alkoxid, das aus Ethylenoxid, Propylenoxid und Gemischen davon ausgewählt ist, mit (b) einem Fettmaterial ausgewählt ist, das aus Fettalkoholen und Fettsäuren ausgewählt ist.
  8. Zusammensetzung nach einem der vorstehenden Ansprüche,
    wobei das Antiflockungsmittel einen HLB-Wert von 11 bis 16 aufweist.
  9. Zusammensetzung nach einem der vorstehenden Ansprüche,
    die ferner ein polymeres Verdickungsmittel in einer Menge von weniger als 0,4 Gew.-% aufweist, und zwar auf das Gewicht der gesamten Zusammensetzung bezogen.
  10. Zusammensetzung nach Anspruch 9,
    wobei das polymere Verdickungsmittel in einer Menge von 0,001 bis 0,35 Gew.-% vorliegt, und zwar auf das Gewicht der gesamten Zusammensetzung bezogen.
  11. Zusammensetzung nach Anspruch 9 oder 10,
    wobei das polymere Verdickungsmittel kationisch ist.
  12. Verfahren zum Herstellen von Spülwasser,
    das das Zugeben einer Zusammensetzung nach einem der Ansprüche 1 bis 11 zu Wasser aufweist.
  13. Verwendung einer Zusammensetzung nach einem der Ansprüche 1 bis 10, um Spülwasser mit weniger Flocken zum Spülen von Textilerzeugnissen bereitzustellen.
  14. Verwendung nach Anspruch 13,
    wobei das Wasser eine Französische Härte von 6 bis 24 °FH, vorzugsweise von 6 bis 12 °FH, und ein Verhältnis von Chlorid : Sulfat von 3:1 bis 1:1, vorzugsweise von 3:1 bis 2:1 aufweist.
EP11781507.6A 2010-12-03 2011-11-04 Wäscheweichspüler Revoked EP2646536B1 (de)

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EP11781507.6A EP2646536B1 (de) 2010-12-03 2011-11-04 Wäscheweichspüler
PL11781507T PL2646536T3 (pl) 2010-12-03 2011-11-04 Kompozycje kondycjonujące do tkanin

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP10193693 2010-12-03
PCT/EP2011/069465 WO2012072370A1 (en) 2010-12-03 2011-11-04 Fabric conditioners
EP11781507.6A EP2646536B1 (de) 2010-12-03 2011-11-04 Wäscheweichspüler

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EP2646536B1 true EP2646536B1 (de) 2015-01-07

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BR (1) BR112013013374A2 (de)
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CN103380205B (zh) 2015-11-25
US20140057827A1 (en) 2014-02-27
CA2819113C (en) 2015-05-12
ES2533707T3 (es) 2015-04-14
EP2646536A1 (de) 2013-10-09
WO2012072370A1 (en) 2012-06-07
MY162962A (en) 2017-07-31
AR083921A1 (es) 2013-04-10
US9150822B2 (en) 2015-10-06
MX2013006250A (es) 2013-10-01
PL2646536T3 (pl) 2015-06-30
AU2011335262A1 (en) 2013-06-20
ZA201303878B (en) 2014-07-30
BR112013013374A2 (pt) 2017-09-12
CA2819113A1 (en) 2012-06-07

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